img.avatar
  background: white
  border: none
  padding: 4px
  +border-radius(3px)
  +single-box-shadow(rgba(0,0,0,0.25), 1px, 1px, 3px)
  &.avatar_32x32
    padding: 2px
    +border-radius(2px)
    +single-box-shadow(rgba(0,0,0,0.3), 1px, 1px, 2px)